Door mechanism.



' J. PBARSON.

noon MBoHANIsM. APPLICATION FILED DEO. 16, 1008.

Patented Jan. 4, 1910. 3 SHEETB-BEBET 1.

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DOOR MEUHANISM'. APPLIGATIONFILED M1016, 190s.

Patented J an. 4,V 1910.

l3 SHEETS-SHEET 2.

J. PARSON. Doo' MBOH'ANISM. APPLICATION FILED DEO. 16, 1908\ 945, 1 08.,y Patented Jah. 1910.

3 SHEETS-SHEET 3.

JOHN PERSON, OF CHICAGO, ILLINOIS.

DOOR MECHANISM..

i Specification of Letters Patent.

Patented Jan. 4,1910.

Application filed December `16, 1908. Serial No. 46?",839.

To all whom it may concern:

Be it known4 that I, JOHN PEAnsoN, a citizen ot' the United States,residing'at Chicago, in the county ot Cook and State of illinois, haveinventedl certain new and useful'Improvementsl in Door Mechanism, ofwhich the following is a description.- y

My invention belongs to that class of devices known as door operatingand controlling mechanism, and-more particularly a dump Y-ar doormechanism, and has for lits objects the production of a simple,e'tl'icient and satisfactory device of the kind described. l v

While in the drawings thedevice is shown as appliedto car construction,itis obvious that it may be used whereverit may be found applicable.

To this end my invention consists in the novel construction,arrangen'xelit and combination of parts herein -shown and described andmore particularly pointed out in the claims.

In the drawings wherein like reference` characters indicate like orcorresponding parts, Figure .1 1s a cross' sectional view ot a portionof a ear with my preterred mechanism applied thereon, one door closedand' one door opened. Fig. 2 is a top elevation of a portion of the carshowing several doors, Fig. 3 is at'ront elevation ot' one of thepreferred forms of door locking and supporting members, Fig. 4 is anenlarged side elevation of the same, Fig. 5 is an enlarged sideelevation of the same with the 'parts in dif- `ferent positions, andFig. 6 is-a view showing simple means 'for ope 'ating Winding shaft.

yReferring to the drawings the can is not shown complete in all itsdetails as this i'orms no part of my invention, it being understood thatmy construction may be used on any form of car to which it isapplicable.

VAs shown the car is provided with a plurality of dump doors 5-'5-011each side thereof, the same being hinged longitudinally the car andarranged to ,torni the bottom of the ear when closed.

Referring particularlyT to Fig". 1, beams 1 1 and #1f-4 are prete ablyprovided and arranged lengthwise at the center and of .the car forming apart ot' the car body which is supported upon the car trucks (notshown)' in, any suitable way. The doors 5 as shown in this figure arearranged on each side of the center beams 1 and pivotally supandsupporting member 13 which is sides ported bymeans of brackets carriedby the beam A. floor 3 of any suitable material may be arranged as shownif desired. The doors o may be secured to the body of the car in anysuitable way, straps 7 and pins (3' giving a simple and convenientconstruction. 'lhe outer or free edges of the doors are supported 'bysuitable locking and supporting means carried by the car, preferably bythe bean'is 1 1. Referring to Fig. 1 the left hand door 5 is closedwhile the right hand door is open or in a dumping position..

ln the preferred construction as inexitioned the door is supported and'controlled by a suitable member and controlling and locking meansprovided for said member. The supporting means comprises a lockingIvotally secured by a pin or its equiva ent to a suitable bracket 16carried by the beam 4. There are preferably a plurahty of 1ockingmembers tor each door, two being shown in the drawings, a description ofone and its operation suttieing for both it being understood that theyoperate .at the same time.

The supporting or locking member 13 is provided with-a hooked .end 14 orits equivalent at which is )rcferably pivotally secured a lilik 17 oneacli side thereof, the links be# ing connected by a pin20 or theequivalent. 0n each side ot the beams 1-1 is arranged what may be termeda winding shaft. 8v the same being suitably supported from the car bodyand providedl wlth drums 9 or the equivalent. y A chain 10 or anequivalent flexible member connects thelinks 17 with the -.drun1 9, thechain being suitably secured to the drum or winding shaft and tothelinks 17- by means of the link 19 orthel equivalent. V The door 5 ispreferably provided with a roll 11 or its equi Yalcnt upon the free edgeat each of the .locking members 13,'.the same being supported or securedto the doorlby the brackets 19.-12 or equivalent means for the purpose..fk/locking pawl Q2 maybe provided on the supporting member, 13 at .'ifdesired, the purpose of the same being more fully explained hereafter.

et'erring to Fig. 4 in which the door isl shown in its closed positionthe chain 10 is under a strain, that 1s, wound on the drum 9 so that thelinks 1T and. supporting member 13 are in- -substantially the positionshown,

the roll11 resting on the hooked end 14 of the supporting memberl sothat theweight of the door is carried by the members 13 andvr the beaml1, the links 17 and chains 10 act- .ing'as controlling means andpreventing the supporting member 13 from swinging out.

It might be noted that the center of the roll 11is slightly outside thecenter of the pin 18. When it is desired to open-the doors the lockingpawls are turned up intovthe position shown in Fig. 5, and the shaft 8then turned so as to slack or unwind the into the positions shown 4onthe right in Fig.`

l, there being sliding or rollcontact ybetween the roll 11 on the free?edge of the door and the chain l0 which supports the-door when notsupported by the members 18. To close the doors the shaft 8 is rotatedin a direction to .strain or wind the chain 10 upon the drum 9 so thatthe doors are lifted thereby the'links 17l substantiallylifting therolls l1 upon. 'the hooked end 14 of the members 13 when it rea'chesthatpoint so that the parts assume their positions to support the doors asshown inFig. 4. It might be mentioned that the links may be proportionedto give any desired leverage in lifting the rolls upon the supportingmembers or that is throwing 'them into -operative positions. .he lockingpawls 22 pivotallyA secured to the members 13 by means of a pin 23 ortheequivalent are arranged to lock the links y1,7 into the position shown in F ig. 4, the shoulder 26 (see Fig. 3) .coperating withv the linkshould vthe lchainbrea'k and -so prevent the doors from opening. Thesupporting member 13 is preferably provided with an extended portion 21which is adapted to throw A the locking pawl 22 down during the operiation of lowering the door after it has been turned up as heretoforementioned so that the locking pawls are automatically reset and arealwaysv in operative position when the doors are closed. 1f desired `thedoors may be provided with auxiliary rolls 211 car-l ried by thebrackets 25 which are adapted to coperatel with chain 10. 4 Any suitablemeans may be employed to operate or rotate the shaft 8 a very simplearrangement being shown in Fig. 6. Referring to this figurea ratchet 27is arranged on the end of the shaft and operated by means ofa lever 28and pawl 29, -a pawl 30 preventmg the shaft from slipping back when anewi'engagement is made between pawl 29 and the ratchet 27.

It is thus seen' that in ythe construction shown there is substantiallyno weight of the door on the chains or straining Lof the chains casses-except -while the door is being opened or closed, nor is the door inits closed position supported by the chain or winding shaft but directlyfrom the fralne of the car. It is obvious that there may be any numberof doors and that they may be 'arranged on the car body in any suitableway, that is transversely or longitudinally or that the construction ofthe car body and doors may be such as is desired.

' Having thus described my invention it is lobvious that variousimmaterial modifications may be made in the construction` andcombination of parts herein shown and described without departing fromthe spirit of my invention, hence I do vnot wish to be understood aslimiting myself to the exact construction shown 'and described.

That I claim as new and desire to'secure by Letters Patent is 1. Ina`device of the kind described and in combinationa door, locking meansfor said door, a flexible member having one end secured to said .lockingmeans and having a sliding connection with said door, and means forstraining said flexible membei` as desired.

In a device of the kind described and in combination, a door pivotallysupported at one edge thereof, locking and supporting means arranged atthe opposite edge thereof and adapted to coperate therewith, comprisinga supporting member pivotally secured to the door supporting means,flexible ieans having one end secured to said supf said flexible means,said flexible means havidng sliding contact with thefree edge of saidoor.

3. ,In a device of the kind described and in combination, 'a car doorpivotally secured at one edge thereof to the car, a locking member forsaid door :arranged at the free edge thereof and pivotally secured tothe car, a link arranged on said locking vmember, a

winding shaft Aand flexible means connect-ing y said shaft and saidlink. d

et. In a' device of the kind described and in combination a car doorpivotally hinged at one edge to the car and -'provided with a roll atthe opposite edge, a ,locking and supporting member therefor arrangedlat the free edge` thereof and pivotallyv` carried by the car, saidmember'provided with a hooked end, a link pivotallysccured to said lockat said hooked end thereof, a locking pawl for said link, a windingshaft, and ,a flexible member having one end secured to said shaft andthe other end to said link and arranged to coperate with said roll'.`

5. In a device of the kind'- described andin combination, a doorpivotally supported at, one .edge thereof, locking meansv arranged atthe opposite edge thereof and radapted to coL operate therewith whenclosed, comprising a therefor engagin 40-to be disengaged y the weighttlieieof, and

s45-,10B i 3 plurality of supporting members pivotally carried by thedobr supporting means, a l flexible member for each of said supportingmembers having one end secured thereto and the other end provided withmeans for straining the samel 6. Inadevice of the kind described and inl combination, a car door pivotally secured at .one edge to the car, aplurality of locking 1,0 members arranged at the free edge of said doorand pivotally carried by the car, a link arranged on each of saidlocking members on each side thereof and pivotally `secured thereto at apoint inside the edge ofthe door,

'A 'i5 a Winding shaft and means connecting-said shaft and said links. y7. In a device of the kind described and in gicombination, a pluralityof car doors each pivotally supported 'at one of the edges there'- of,aplurality of locking supporting members for each of said doors whenclosed arranged at the free edge thereof and pivotally v.carried by thecar, each of said members provided witli a hooked part adaptedto engagethe free edge of the door, a winding shaft, a'4 chain for each of saidsupporting members' secured to said shaft and means foi-connectring theother end ofl said chains ywith said y:supporting members. 5' l sql? 8.In a device of the kind described and in -conibinatiom a door, andlocking means for said door normallyengaging the vsame when closed butarranged to-be disengaged therefrom by the weight of the door, and meansfor raising the door. and controlling said locking means when the dooris closed.

' 9.' In a device of the kind described'and l in combination, a doorsupporting means therewith .and arranged.

means for normally retaining said door and supporting means inengagement, said re-I taining means arifan ed t'o support the d oor whendisengaged rom said supporting means; l .y 4

' 10. In a device of the kind described and in combination, Aa door,,supporting means therefor arranged tol engage the door when closedandcmean' foi"ior1iially drawingand.

maintainiiig'he supporting meniber in operative position comprisingiexible means for raising the door #to its closed position and means forstraining said flexible means` 1-1.` In adevice of the kind describedand incombination, a car door pivotally secured at one edge thereof tothe car, one or more door locking supporting members carried by the carat the free edge of said door and arranged to normally support the doorwhen closed, means for controlling said supporting members arranged tosup )ort the door when open and automatic auxiliary locking means'carried by said supportingmembers.

12. In a device of the kind described and ii-i combination, a doorhinged at one edge thereof, meansfor engaging and supportin the freeedge of the door when closed an locking the same in its closed positionand flexible' controlling means for said support- 'mg means arranged tosupport the'door in 70 its'open position.

`13, In a device of the kind described and in combination, a plurality.of car doors', each of. said doors hinged to the car andprovided withrolls at lneV free edge thereof, a plurality of hooks pivotally Vcarriedby the car and arranged to engage the free edge of each of said doorswhen closed at said rolls, and means for raising said doors and d 'awingthe hooks in the operative positions when the doors reach their closedpositions. 14'. In a device ofl tlie kind described and in combination,a plurality of car doors, each hinged on one edgethereof to the car, aplurality of members'for each of said doors car- 85 ried by the cararranged to substantially engage the free edges of said doors oppositethe hinged `edges thereofand support and lock the door in its closedposition, each of said'members provided with substantially a 9o liftin(rlink thereon, a winding shaft and flexib e means for supporting 'thedoor when open and controlling said supporting members. 4 i

l5. In a device of tliekind described and in combination, a door`iivotally supported at one edge thereof, a plurality of hooks at theopposite side of the door arranged to engage tlie same, and means foi`drawing said hooks into operative position.

In' testimony whereof,` I have hereunto signed my-name in the presenceof two subscribing witnesses.

Y vJOHN PEARSON.

